5 research outputs found
Security attacks and Analysis of Recent Intrusion Detection Schemes In Wireless Sensor Networks
Wireless sensor networks are currently the greatest innovation in the field of telecommunications. WSNs have a wide range of potential applications, including security and surveillance, control, actuation and maintenance of complex systems and fine-grain monitoring of indoor and outdoor environments. However security is one of the major aspects of Wireless sensor networks due to the resource limitations of sensor nodes. Those networks are facing several threats that affect their functioning and their life. In this paper we present security attacks in wireless sensor networks, and we focus on comparison and analysis of recent Intrusion Detection schemes in WSNs
Resilient networking in wireless sensor networks
This report deals with security in wireless sensor networks (WSNs),
especially in network layer. Multiple secure routing protocols have been
proposed in the literature. However, they often use the cryptography to secure
routing functionalities. The cryptography alone is not enough to defend against
multiple attacks due to the node compromise. Therefore, we need more
algorithmic solutions. In this report, we focus on the behavior of routing
protocols to determine which properties make them more resilient to attacks.
Our aim is to find some answers to the following questions. Are there any
existing protocols, not designed initially for security, but which already
contain some inherently resilient properties against attacks under which some
portion of the network nodes is compromised? If yes, which specific behaviors
are making these protocols more resilient? We propose in this report an
overview of security strategies for WSNs in general, including existing attacks
and defensive measures. In this report we focus at the network layer in
particular, and an analysis of the behavior of four particular routing
protocols is provided to determine their inherent resiliency to insider
attacks. The protocols considered are: Dynamic Source Routing (DSR),
Gradient-Based Routing (GBR), Greedy Forwarding (GF) and Random Walk Routing
(RWR)
Inherent Security of Routing Protocols in Ad-Hoc and Sensor Networks
Many of the routing protocols that have been designed for wireless ad-hoc networks focus on energy-efficiency and guaranteeing high throughput in a non-adversarial setting. However, given that ad-hoc and sensor networks are deployed and left unattended for long periods of time, it is crucial to design secure routing protocols for these networks. Over the past few years, attacks on the routing protocols have been studied and a number of secure routing protocols have been designed for wireless sensor networks. However, there has not been a comprehensive study of how these protocols compare in terms of achieving security goals and maintaining high throughput. In this paper, we focus on the problem of analyzing the inherent security of routing protocols with respect to two categories: multi-path and single-path routing. Within each category, we focus on deterministic vs. probabilistic mechanisms for setting up the routes. We consider the scenario in which an adversary has subverted a subset of the nodes, and as a result, the paths going through these nodes are compromised. We present our findings through simulation results. I